Question: As much as I love VM and Lost, I'm really curious if you've got any Supernatural scoop.

Answer: Some cool guest stars coming up. William B. Davis aka X-Files' Cigarette Smoking Man will play a possibly evil professor on Jan. 10. And the following week, Angel alum Julie Benz drops in as Layla, a woman with a brain tumor who seeks out a definitely evil reverend known for curing the incurable.